A recently configured cluster is leveraging NearSync with a recovery schedule of 15 minutes. It is noticed that the cluster is consistently transitioning in an Out of NearSyne.
What action should be taken to potentially address this issue?
A.
Increase network bandwidth
B.
Change the NearSync schedule to 30 minutes.
C.
Add a vCPUs to the user VMs.
D.
Configure a secondary schedule in the same Protection Domain.
One of the possible reasons for a cluster to transition out of NearSync is insufficient network bandwidth between the source and target clusters. NearSync requires a minimum network bandwidth of 10 Mbps per VM for replication3. If the network bandwidth is lower than the required amount, the replication of recovery points may take longer than the configured RPO, resulting in an Out of NearSync condition. To address this issue, you can increase the network bandwidth between the clusters or reduce the number of VMs protected by NearSync4.
References: 1: Stargate - Nutanix Bible 2: Nutanix Cluster Architecture Overview - Nutanix Bible 3: NearSync Disaster Recovery (RPO <= 15 minutes) - Nutanix Support & Insights 4: Transitioning in and out of NearSync - Nutanix Support & Insights
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